(S)-Etodolac Sodium Salt CAS 136172-37-7
| CAS No. | 136172-37-7 |
| Molecular Formula | C17H20NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (S)-Etodolac Sodium Salt (CAS 136172-37-7), a certified reference material (molecular formula C17H20NO3Na, MW 309.34 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, (S)-Etodolac Sodium Salt is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 309.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H20NO3 Na |
| Molecular Weight | 309.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
Related S Standards
- Etodolac Impurity 2 (CAS 101901-06-8)
- Etodolac Impurity 3 (CAS 101901-07-9)
- Etodolac Impurity 1 (CAS 101901-08-0)
- Etodolac EP Impurity C (Etodolac USP Related Compound A) (CAS 109518-47-0)
- Etodolac Sodium Salt (CAS 110781-63-0)
- 4-Oxo etodolac (CAS 111478-86-5)
- Etodolac EP Impurity J (CAS 115066-03-0)
- Etodolac EP Impurity K (CAS 122188-02-7)
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- 1-((3-Methylpiperidin-1-yl)methyl)cyclohexan-1-ol (CAS 1484840-22-3)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com